Investigative Campaign Management
Codex Cryptica for Call of Cthulhu
Keep investigators, contacts, clues, cult conspiracies, and mystery lore connected in one place.
Why chronicles get complicated
Investigative horror campaigns quickly grow into a web of clues, suspects, contacts, locations, and hidden connections. When the investigators follow an old lead to a forgotten archive, you shouldn't have to dig through scattered notes to remember who gave them the clue — or why it matters.
Why Codex Cryptica?
Clues, Evidence & Connections
Map how clues, testimonies, documents, and crime scenes connect using a visual relationship graph.
Cult Conspiracies & Secret Contacts
Connect shadowy orders, police informants, academics, and cult leaders to the places they operate.
Occult Relics & Archival Lore
Link ancient artefacts, forbidden manuscripts, and historical events to the mysteries they unravel.
Session Notes & Active Leads
Keep active leads, mystery timelines, session notes, and investigation milestones connected to the people and places they involve.
Sample Call of Cthulhu Investigation Web
See how an investigator, a police contact, a telegram, and a secret society lead to a hidden archive and its occult ledger.
Featured Tools
NPC Generator
GeneratorCreate investigators, informants, academics, and cultists with distinct motives and backgrounds.
Faction Generator
GeneratorDesign secret societies, esoteric orders, occult cults, and investigator alliances.
Quest Hook Generator
GeneratorGenerate mystery leads, strange incidents, police reports, and investigation hooks.
Settlement Generator
GeneratorBuild coastal towns, university districts, isolated manors, and asylum locations.
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Organise Your Investigation
Keep your mystery campaign connected with relationship graphs, interactive maps, and local-first storage.
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